HomeMy WebLinkAboutSpa SpecsBuilding Plan
For
Hankinson Residence Spa
Scott Hankinson
February 16th,2024
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Table of Contents
.....4
Soil Report
Site Selection and Preparation..'..'."'..--.'
Risks Associated with Site Preparation...'
Site Preparation ''t'rrtrt""t""
Mitigation of Debris....
.5
6
7
I
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11
11
12
14
14
Removal of Materia|................_...._....9
Time to Completion
Concrete Pad Design and Gonstruction...'...... -r..'....i.......irrr.. t. r.r ir..."
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..9
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Hot Tub Wall Gonstruction.....
Stair System
Bench System......
Risk Factors................
Time to Gompletion
Waterproofing and Tiling the Vessel
Time to Completion........:...:.....
15
15
t6
16
18
24
25
27
29
29
30
31
33
35
35
35
35
35
36
36
36
36
36
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PVG Pipe Systems... ...i..r.r...-,.r..
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Time to Completion
Mechanical Room Design...... .r,.....r.-'.r!...
Time to Completion....'.
lnsulation of Spa Walls.
Time to ComPletion
Electrical Service.....
Time to Completion
Source and Cost Tables....'..,!ri!rlii'rrr.r.rr..i-rrrr'.i'rr..r.ir.rr.!,,"r'r"
Water Source.......i. rrr.r r.r r ir. r..
Water Disposition..' r.....irr.r.i.r'
Permitting and Compliance'...'.......
Building Permit..............
Project meets the current edition of the
(lsPsc).,...
Soil report related to a Pool....
General pool design (concrete, gunite,
Construction drawings.
Heating design.......
Safety covers........
lntemational Swimming Pooland Spa Code
in-ground liner, above ground)..... r.. -..r..'.a..r. ;
...35
Pool barrier or fence.....
Equipment room'new structure design or existing area...........
General mechanical equipment description including suction trap avoidance
General frost protection....^.......
Decks and coping
Public or private...
Electrical Service Permit........
Appendixes
Appendix A
American GeoSciences of Glenwood Springs - Soil Report dated February 14,2024....42
37
,37
.37
38
38
38
38
40
41
42
lntroduction
The Hankinson Residence Spa is being constructed in the back yard/patio area of our home, as
an inground spa. The spa will be maintained at cooler temperatures during the summer months
in order to cool ofi, where in the winter months the spa will be maintained at hot tub
temperatures exceeding 100 degrees. The secondary use is as a water reservoir, where
firefighting personnel would add chemical retardant,to the water source and use it as a defense
system against a potentialfire. This concepl has been discussed and endorsed by the
Carbondale Fire Department.
The construction materjal used is Concrete Masonry Unit (CMU), following a design pattern
presented by CustomBuiltSpas.com, leveraging 20 years of experience. Form.based systems
require the entire mold to be constructed, with embedded rebar, poured, or injected using
traditional cement equipment. By contrast, the- CMU system allor,vs for a slower build process,
with blocks cut to specificity, reinforced with rebar during the eonstruetion process.
The site is located in the backyard of the home, where there is an existing wall to one-side, a
slope grading off the back, and a future short wall to the right. The pad is a polyhedron shape,
approximately 1 S-foot square.
The construction process begins with the development of this plan, encapsulating the materials
and processes to be used, while consldering riskfactors involved ln the project. These irtclutJe
the excavation of the site, protecting against material leaving the site, disposition of soil and
rock, load-in of construction material, installation of supporting service, water drainage,
disposition, and wildlife mitigation, etc. All aspects are covered within this document and
supporting images.
This is a Do-lt-Yourself project in its entirety. The owners, Scott & Susan Hankinson, will be
providing the labor for all aspects of the project, with lhe exception of electrical services, which
will be provided by XYX Electrical. The electrical permitwill be pulled by the homeowner, with
the preparation of circuits to the spa implemented by the Homeowner.
The excavation, preparation and pouring of concrete pad, block cutting and installation,
water-proofing and general placement and installation of equipment will all be performed by the
Homeowner. The use of spa is generally limited to the Homeowners and their visiting family
members.
The design is meant to be energy efiicient, While based on electrical cunent provided from the
grid, it anticipates the shift within two years to solar-based energy solutions. We are intentionally
delaying the shift for solar panel advances expected within the next two years to be
incorporated into our projected roof replacement. Once complete, the spa will utilize energy
collected on-site.
Soil Report
A soil report was ordered and completed by American GeoSciences of Glenwood Springs. The
results are presented as Appendix A.
Site Selection and Preparation
The spa site is Jocated on the north side of the home in our backyard,which is
odd-shaped, generalty triahgular in pattern. The design hides the pumphouse at the far
end of the space, beneath a wall designed to be a water feature, as well as stairs to
access to the pumphouse. Upon completion, the final pattern fofms,an enclosed'area
providing protection from visitors traversing down the hillto the valley below.
Currently, the site is covered in gravel for simple dl'ainage purposes. The gravel will be
removed and staged to the side of the lot for use in the construction of the cement pad,
and for supporting drainage channels.
The excavatisn will be performed by a combination of a trencherand hand tools. Larger
boulders will be broken usin-g chemical rock fracturing, where,holes are drilled and
chemical inserted for overnight processing of breakage. The pieces are then removed.
The depth of 48" needs to be established. The rock and soil extracted will be
repositioned, first by wheelbarrow, and then by ATV cart, to our lower lot (approx. 200
yards away) where it will assist in stabilizing the pad used for stOring sporting and snow
removal equipment. This process is anticipated to take two to three weeks, depending
on weather and cycles of rock fracturing.
Once excavation is completed, the area is prepared by comp-action, using a jackhammer
with a compaction head. The area is leveled with sand, whieh is also compacted. A2'
thick layer of closed cell insulation is laid upon the sand. Rebar is installed in a one-foot
grid pattern, with 20'sections of rebar: bent at 90 degree angles with 50" vertical rise on
each side, where blocks will be installed in the future. These rebar verticals tie the block
structure into the concrete pad.
The rebar utilizes risers to hold the rebar at elevation, in order for the concrete to fully
surround the rebar matrix. A bonding wire is adhered to the rebar matrix, in order to
provide the grounding circuit for all electronics to be installed. The concrete pad is
poured 5 7z inches thick, ensuring ar pockets are removed and cement is uniform in its
structure for proper curing..
The pad is designed to be one-foot wider around the cireumference of the spa. Upon completion
of the pad, the area immediately adjacent to the pad will have a visi-queen sheet in a trench,
with 4" perforated pipe installed around the entire circumference and back-filled with gravel. This
is to establish a water barier to protect the pad, while enabling drainage for any water that
makes it to the surrounding pad, taking the water away from the pad and down to the drainage
field.
Risks Associated with Site Preparation
The site edge is a 40 degree slope down to Cattle Creek, bdlow. This is a heavily
vegetated slope. While the chance of material going over the edge is limited, a cable
fence will be constructed as the first step prior to commencement of site preparation
work. A cable system will be run between trees below approximately six feet below the
construction site, with long runs horizontally, and short runs attached vertically, and then
covered with tarpaulin in order to form a barrier capable of catching any debris that
might escape the site. This will provide an adequate safety measure.
The chemical rock fracturing process will be used if large rocks are encountered that
prove difficult to break with normal physical strategies, such as jack hammer and
masonry saw. The process for chemical breaking is to drill holes with an impact drill
through 807o of the rock in one-foot spacing, and applying chemical breaking
substances under cool temperatures. The material is left overnight, in order to allow the
expansion process and rock breakage to occur. The objective is to produce rocks under
50 lbs each, as they must be manually transported by wheelbarrow from the site to its
final destination a couple hundred yards away.
Site Preparation
The site is located at 33 Four Wheel Drive Rd, Carbondale, Colorado 81623 in the Up Cattle
Creek Subdivision in Garfield Gounty. The home sits on a saddle 230' above Caftle Creek, The
site, in its entirety, is within the building envelope. The property line is 180'down the hillside.
The building site is adjacent to the slope. The space is level, with an existing 4' high by 25' long
culture stone wall with the lot shaped slightly larger than the pattern of the proposed spa.
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The pump house, shown on the North side, is at the back edge of the lot, and sits on the spa
cement pad at 4' below grade.
Mitigation of Debris
Prior to digging, a light-tensioned steel cable catch will be strung between the trees, four feet
tall, establishing a barrier six feet below the pad preparation area. While all material is being
pulled to the South continuously, a cable net is warranted to prevent any errant material. The
slope is heavily vegetated with an abundance of trees.
Removal of Material
The site consists of clay soil encasing rocks of various sizes. lt is anticipated that there will be
boulders that present obstacles to completing the excavation. A combination of tools will be
applied to prepare the site, including a trencher, drills, jack hammer, pickaxe and shovel. Dirt will
be loaded into a wheel banel and ported around to the front of the house, loaded into an ATV
cart, and transported a few hundred yards to an area in need of material.
The site is inaccessible by any large excavation equipment, with the porch around the house the
only path in or out. Therefore, the relocation of materialwill be a manual process.
The procedure will begin at the North area, pulling dirt into a staging area to the SouthEast area
of the lot, for loading into the wheelbarrow. Ramps are used to lift to deck, and carts are at deck
levelfor easy loading.
When boulders are encountered, they will be cleared around and repositioned to the South,
where,it'will be determined if they may be loaded, or cut down to size. Cutting may occur
through the use of a masonry saw, jackhammer, or for larger rocks, a chemical breaking
substance loaded into bore holes and working overnight.
The excavated area is to the dimension of the pad as presented on the Layout, to a depth of 54"
(4' 6"). This depth considers:
Time to Completion
The time for excavation is anticipated to take 3- 4 weeks to complete. This may be affected by
a variety of factors, including weather events, cold conditions, equipment, material transport,
externaljob pressures, etc. The Owner is performing these tasks single-handedly, and so is
dependent on availability.
> 4" - Capstone> 2 -'Waterline
> 22'-Bench> 16" - Floor> 5112 - Pad> 2o , Foam lnsulation> 2" -Sand
Concrete Pad Design and Construclion
The concrete pad provides a stable platform for the spa area. The pad suppOrts the vessel that
contains water, the exterior 4'wallto irame in the pipe runs, and the pump house (bunker) that
contains the spa equipment. Generally, the pad is 1'wider than the vessel around the outside,
with the 10'wide wing on the north (rear) of the spa.
The pad is constructed by first compacting the soil using a compression head on a jack
hammer, then establishing a firm outline using 2" x 6" dimensional lumber set to elevation that
accommodates a 2" layer of sand, and a 2" layer of R12 foam insulation. The foam board
becomes the platform layer for rebar lifters, establishing a one foot square grid Patterrt of rebar.
ln l2locations, the rebar is bentto create'verticalbars forthe exteriorwall. The blocks are fed
over the rebar during assembly, where the cells are filled with high-strength cement.
The actual pad, at 5 112" thick, will be poured in two layers: A 3" base layer, that will dry for a
minimum sf three days, with a 2nd pour of 2Yz.fhis is designed to create additional strength
within the pad. Cement is stored at front of hsuse on pallets, moved manually to the staging
area at rear of house prior to each pour.
The side walts are to be covered with cloth tarpaulins to keep debris being kicked into the
cement during the curing Process.
Risk Factors
Weather is the largest factor when pouring the pad. A pour requires predictable weather and
temperatures, within a certain degree, The fuo pours will be scheduled to occur when the day is
predicted to be free of rain (or snow), and the night time temperature is above 40 degrees. A
cement bianket of adequate size is available for additional protection. A heater may be
augmented if necessary.
Time to Completion
The pad preparation willtake 1-2 days. This includes bending the rebar, establishing the ground
compaction, sand, insulation and rebar matrix. The load-in of cement will take two cycles of 2-3
hours each, transporting cement from the front of the house to the staging area adjacent to the
site. The pad pour will take 7 - 10 days, depending on weather and dry time. A combined time of
2 weeks is anticipated for the Concrete Pad Construction.
Hot Tub Wall Construction
The Spa vessel is to be constructed with ConCrete Material Unit (CMU) concrete blocks- The
construction is a two-phase process, with the 1st phase preparing all of the pipe transitions
through the wall, and preparation of the more complex 180 degree seating areas. These willbe
cut and assembled in the garage prior to and during the time excavation work is occurring.
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The cutting of blocks is required to form the curvature required for the two 180 degree seating
areas. This includes the other wall, and the bench blocks. The use of a masonry saw capable of
cutting blocks will be set up, and the formaiion of the two areas completed away from the
construction site,
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The blocks used for jet pipes are turned on their side, with the cell of the block oriented
horizontally. The PVC pipe used for the spa jets is positioned within the cell, locked into place,
and then high-strength cement is poured into the block and allowed to set. Jets for placement at
upper and lower back traverse only the exterior wall. The foot jets traverse three blocks: The
exterior wall and the two blocks that comprise the lower level of the bench.
ln all, there are 24jet housings, as well as 2 pipes each per Jet pump return, 4 pipes for the
filtef and heating water circuit ( 2 each located on the North and South side of vessel), 2 pipes
for the water feature supply, 2 skimmers (mounted inside the vessel at waterline), and two pipes
to accommodate the 12v LED lights inside of the vessel. There is an optional pipe for a
temperature sensor that is expected to be eliminated from design due to relocation of the
sensor.
The drain is accommodated by ball valves on the filter water circuit, where two valves are used
to cut flow through the pump, and another opened to connect to the exterior drain.
The exterior: wall is built first, with blocks slid over vertical rebar implemented into the pad.
These are designed to be in areas where the blocks are stacked in traditionalform, cells in a
vertical,orientatiori, There are five cours-eS of 8" block. With each course, two channels are cut
using a diamond-blade masonry saw, with rebar inserted within each level. Any block turned
with cells horizontally, where one cell has a pipe traversing, and the other cell is open, will be
filled with cbment during the pre-construction phase. All cells that are open vertically, with or
without rebal will be filled with high strength cement in order to oreate a rigid pillar of cement.
For'ceils withsut pad-based rebar, a piece of rebar will be inserted in the cetl and set prior to
fllling.
Stair System
Once the exteriorwall is completed, the stair system will be implemented. The stairs are
established by creating a moLd, 1sI with a rectangular ffamework, modified to create a curvature
in the stair design, The stairs have a matrix of rebar, tfaveling ,through all of the Stairs, and then
within each stair. The matrix of rebar is a reinforcement of the high-strength cement used to
complete the stair mold, Gompletion,oJ the.s6lps first, with,appropriate cUre time, wif l allorr for
easier load-in of blocks and other material for the,rest,of the vessel construetion.
Bench System
The bench is two'blocks deep'py two:Eloeks higt!,,fofriring a.square bench 16" X 16". Thetetg. hl
foot jets, 4 jet return lines, 4 filter eirgriit,pipes.,and 2 led.light pipes are installed lhrough {he 2
blocks and through the wall. Gells,hor-zOntally sriented are e[lher.filled'when pipe set, or pdcked
during,constructi6n, whete the)f travel through an open bell. The foot jets are in the loWer:,level
of the bench (2 blocks high), the two led lights are in the top block level.
The majority of the benches are straight alignments, on the West, North and East walls. The
South watt has two 180 degree .seating areas,,these blocks have been prepared.ahead of time,
due to the shaping requifed. The bench ties into- the stair system using high-strength cement.
The bench is completed thiough the use of fiigh-Strength cemen! yoti round out the join to the
exterior wall and bench, where the lower back (spine) will rest, and in the two secondary jet
seats, located along the North wall.
The bench is finished by using Type S mortar to fill in any-and-all openings between the blocks.
The end result is a relatively smooth and completely filled in vessel, ready for water.proofing
treatment.
Risk Factors
It is imperative that the bench syslem has cured completely prior to waterproofing- Delays are
possible due to weather and/or temperature. While a cement blanket capable of covering the
area is available, if temperatures do not cooperate, a detay will be required.
Time to Completion,
Construc-tion of the vessel is projected to take 11 - 14 days, weather permitting. There will be
finite issues in installing and aligning the pipes traveling through the bench area, dry time for the
stairs until they are usable, load-in of blocks, etc. The exterior wall must cure prior to pouring of
the stairs, and load-in of blocks must be correctly staged in order to properly install the pipe
travels.
Waterproofing and Tiling the Vessel
The waterproofing and tiling phase is a three-step process to sealthe vessel in preparation to
hold water. The first step is to apply a substance called Basecrete, a flexible waterproofing bond
coat used to seal the blocks and pours. This is applied in two coats. While the manufacturer
states that it can be completed in one coat, a second coat is to be applied for additional
protection.Each coat requires 24 hours to dry prior to another application.
The 2nd phase is the application of Olympic Zeron Epoxy Pool Coating. This will also have two
coats applied, and each coat requires 24 hours of dry time.
The 3rd step is the installation of tile. A bronze-colored pebble design has been selected for the
bofrom and bench (horizontal surfaces), with a two-tone muted blue paftern for the walls
(vertical surfaces). A modified pebble selection will be used for the top four inches of the vessel,
in order to create a visual effect.
Once the waterproofing and epoxy paint processes are complete
Tirne to Completion
It is anticipated that two days will be allowed for dry time for each coat. This may be slightly
accelerated based on temperature and the determination that the coats are adequately dried.
The waterproofing and epoxy paint process will take between 5 - 10 days to complete.
The tile process is a labor of love, used to create a visual impact. The tile and grouting process
is expected to take 3 - 5 days to complete.
PVC Pipe Systems
The PVC Pipe Systems are composed of four water circuits, with the jet circuits also distributing
air, and the 12v lightsystem. The fourwater circuits are:
o Jet Pump 1 (traverse the west wall, supporting two seating areas [12 jets])
e Jet Pump 2 (traverse the East wall, supporting two seating areas [12 jets])
r Filter Pump flow and return (4 pipes: 2 on North wa1l,2 on South wall)
o Water feature (2 pipes on North wall only)
The two Jet pump water circuits are the same design implemented along the two sides of the
vessel. During vessel construction, the PVC pipes that pass through the vesselwall have
already been installed, with the pipes extending t/a" inside the vessel (the/a" accommodates the
installition of tile, bringing the jet flush upon completion), and the PVC pipes extending 2 inches
outside the vessel, in order to accommodate the rnanifotd connector. Each jet has a 2" waler
port and 1 1t2" air port. The manifold slides on to the protruding PVC pipe as a T pattem, with
PVC pipe inter-connecting the manifolds. Each jet ci.rcuit supports 12 jets, 6'per seating aiea.
The jets are staged at upper back, lower back, and foot level. The back jets pass through only
the exterior watl, one block thickness, whereas the foot jets pass through three blocks (exterior
wall and two bench blocks).
The PVC pipes are cut to fit and dry installed for the entire project. This is necessary to ensure
all pipes are routed correctly, and to allow for changes in routing that may be necessary.
A closed loop circuit is designed, with the pipe traveling from the pump house (bunker) along
the top line of jets, and returning along the lower foot jets. lnter-connection from the high pipe to
the middle pipe are used for each of the four stations, where a Y is used on each end to deliver
both water and air to the middle jets.
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The'two ends of the.closed circuit tie back into a Y coupling at the pump house to connect to the
PUffiP, The in port of the pump receives water from another circuit running to two pipes in the
lower footwell area, that are each covered with 10'VBG-compliant high-flow suction covers,
used to prevent suction against a bathers skin.
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The design for the two jet circuits is identical for the two sides of the hot tub
The filter pump design pulls waterfrom theveseel thioughlwo plpes in the fooWell, cleanl t\..
water through a large filt€ring:basket, pas-sing,through an ozone sanitation system, ihe'water is'
then heated if used Ouring.winte, ,nonthr,
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r.etrr"ed via to PVC ports, alFo loceted in the
footwell area on the other side of the vessel. These ports are coruergd by 8" VBG-compliant
suction proof covers.
The water feature has.two PVC pipes'that.draw,water'from the vessel, again,,covered by I'
VeC-compliant suction covers, wher.e fhe Watttr is:pirmped, to tvo wateFstorage tlow: at the top
'of the waterfeatUre (Left,and Right), wherertheWdter'cascades dowit:intoa'Centrel pla!e;,
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cascading into the spa.
There are two pipes for the 12v LED'lights; loceted on the East and'West walls. These each
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cell foam insulation, the conduit will allow for a cable pull if it ever becomes necessary to
replace the light fixtures.
Foreach of the water circuits, lhe weight of water can cause degradation of connectors as time
progresses. While all of the pipes are to be encased in closed cell insulation foam, which will
help to lock in the PVC Pipe System, the use of 1" PVC pipe, used to create supports for the
water lines, by placing the 1" pipe from the concrete pad to underneath the water pipe will give
the additional support to lock in the water pipes.
The PVC Pipe systems,are slrstematjcally prepped'and glued,,'working from the inside to
outside, in order to properly assemble'{he,entire PVG:,P-ipe System. Thisrineludes lhe routing
and installation of all mectianical devices. ThE entife final solulion must be completely
assembled without glue, in order to ensure the.systern is properly implemented, prior to prep
and glue.
Once the external systems are completed, the internalsystems may be completed. These
include,the instatlation,of all VBG-compfiant suction covers (10 total), the internaljet assemblies
(12 per circu it, 24 in all), Ski m mers (2), 1 2V' LEE Lights (2).
The jets require insertion of a threaded tube to connect to the manifold, and must be cut to
precise lengths, taking into aecount the thickness of the tlling to be installed.
Time to Completion
The pVC Pipe System is coordinated with both the Elec{rical Systems and the Mechanical
Systems, as well. All must be completed before.advancement. Tier'timelines are separate
calculations for planning purposes, but are interlaced. The time to cut and configure the PVC
pipe System, dry design, and then finalglue and installation is expected to take 5 - 7 days'
Mechanical Room Design
The Mechanical Room (aka pump house, aka bunker) is the heart of the spa. The
Electrical Service is covered under its respective section, detailing the needs to run the
Mechanical Room. This section details the design forthe initial implementation, and
considerations for future expansion, if needed.
The Mechanical Room is located off of the backside of the Spa on the North side. Once
completed, it may be accessed by walking around the walldown a short path, or by
shortcut walking over the water feature wall and down the back side,
The room is constructed with CMU concrete blocks, assembled on top of the pad that
supports the water vessel. The Mechanical room butts up against the vessel, with PVC
pipes passing through the vessel,wall for routing to pumps, and around the side of the
vessel, passing through the Mechanical Room sidewalls, out to jets and return flow
routes.
The following components are to be installed in the initial build-out:
1) Electrical Distribution Panel
2) Jet Pump 1
3) Jet Pump 2
) Air Blower
5) Filter Pump
6) Water Feature Pump
7) Filtration basket
8) Controller/Heater #1
9) Heater #2
10) Ozone Sanitation System
11) 12V GFCI (for pool lights)
12) 2lights (for illuminating the Meehanical Room)
Space will be reserved for the installation of a Propane Gas Heater, or a Heat Pump, at a
later time, if necessary. The intent is to insulate to R30, and provide passive heat and
insulation with the covei and utilize the Spa for one year to determine if additional heat
sourcing is necessary.
The layout of devices will be finally determined once all equipment is at-hand, with a
preliminary design included. The placement of components may be adjusted based on
the routing of the PVC Pipe System, and requirements where components are required
to be inline, such as the filtration bucket, filter pump, Controller/heate[ and Ozone
Sanitation unit.
The Electrical Panel, Air Blower and 12V GFCI are wall-mounted, The Electrical panel will
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be on the East wall, the Air Blower and 12V GFCI on the West wall. :
The four pumps will be staggered based on the pipe routings, A couple of planks will be
lrnnrtart rn rha narnanf nad r rcinn nement holts and the mechanical devicgs attaChgd tOVVI lqFV lv Ll ls --t,.Y
the planks. The planks will be waterproofedlepoxy-coated prior to installation to ensure
longevity. lt is antieipated that water may be present at periods of time.
Each device will have ball or gate valves before and after, with union and compression
fittings, to facilitate change-out of components if necessary. There will be a drain line
exiting from the Mechanical Room for when the vessel needs to be drained. The pipe
exiting the Mechanical Room is a solid PVC pipe, connecting to a perforated pipe line
traveling to the drainage field.
The Mechanical Room is insulated with 2" R12 insulation, with lights overhead to
provide illumination as well as a simple heating system.
The doors will consist of two 4' x 4'doors that swing open to provide wide access to the
Mechanical Room.
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l&
The water feature wall, consisting of 3" thick stone, is layered 4'height over the top of
the bunker, forming the water feature, and doubling as a walkway over the wallto
access the Mechanical Room.
Time to Completion
, The Mechanical Room requires the Electrical Service to be completed prior to
, completion. Testing of the PVC Pipe System cannot occur until all mechanical devices
are installed and charged. An extensive test cycle must be completed before the site
may be completed. The PVC Pipe System, Electrical and Mechanical must be fully
certified before the exterior wall and closed cell foam insulation may be installed.
lnsulation of Spa Walls
upon completion of all spa-related systems, including mechanical room completed, all electrical
connections, water, air, spa lighting and control circqits are in place, and a second wall utilizing
4" x 8" x 16" blocks are used to construct an outer wall containing all of the various pipes, and
after completion of a minimum of three days operating the spa pumps under load, the chamber
between the vessel exterior wall and the outer containment wallwill be filled with closed cell
spray foam. This will encase all of the pipd runs, fully encasing the plumbing. The target is to
exceed an R30 insulation factor by providing 6 inches of insulation around the vessel.
, Time to Completion
The foam insulation process will take 4-6 hours to complete. Once the foam insulation process
has been completed, the spa is ready for coping and pavers to be installed.
Electrical Service
The electrical service is outside the skillset of the owner, ahd will require an Eleetrician
to perform the installation. lt is understood a separate peimit will be requested from the
State of Colorado for completion of woik.
The Spa draws significant energy and therefore requires a new electrical service to be
installed. There are no circuits present in the Spa area. The electrical .service for the
home enters on the South side, originating from the pole at property edge some 50
yards from the house, entering on the South-side of the home, with the home
dlstrlbution panel in the garage-
The electrical circuit willtravelfrqrn the garaEe, into the crawl space where it will be
suspended in the rafters, traveling through the foundation wall, and up to a disconnect
box mounted on th€ North wall of the house, adjacent to theSpa area. This central
disconnect will facilitate the cutoff of all'power to the Mechanical Room from a singf e
switch.
The circuit will route back down the wall, through conduit, buried underground, beneath
where pavers will be laid for the area surrounding the spa. The circuit will enter into the
Mechanical Room on the East side, routing into the electrical distribution box.
The majority of components are managed by a central controller, which includes the
: primary heater unit. The controller provides connections to each of the components
The below chart shows the energy requirements:
Time to Completion
This work will be broken down into stages: (5 days)
1. Line from Spa to Disconnect Box (2 Days)
2. Line from Disconnect to Bridge (1 Day)
3. Disconnect Box (lnstall& Config) (vzDay)
4. Wire Distribution Panel (1 Day)
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Water Source
Water is provided from the spigot attached to the house. There is no water line from the
house to the Spa. Spa is filled running a garden hose from spigot to Spa.
Water Disposition
. Due to the sanitation methods incorporated into the design, the change of water will occurI infrequently. When draining the Spa is required, the vessel is ernptied by closing off the valves
I to the respective water circuits to pumps, and opening the drainage valve. Water will flow
through a 4" perforated hose traveling to the septic dump field, which is a wildflower garden,
below the house.
Pool Cover System
The Pool Cover System is still in design. The finalform will include a high R-factor system that
has a rigid structure to support a reasonable amount of weight, secured to tie-off points around
the Spa. The cover will be designed to lock into position and maintain a seal around the
perimeter. The cover will be designed as two parts to facilitate positioning.
The costs
Permitting and Compliance
Building Permit
Building Permit Application is to be submitted to Garfield County Building Department.
The followi4g checklist, as provided by the GarOo Bldg Dept, has been used in preparation:
Project meets the current edition of the lnternational Swimming Pool and
Spa Code (ISPSC)
A thorough review of the ISPSC has been made and all aspects adhered to.
Soil report related to a Pool
[See Soil Report section]for details.
General pool design (concrete, gunite, in-ground liner, above ground)
Concrete Material Unit (CMU)
Construction drawings
Included in Building Permit submission]
Heating design
Covered in Mechanical. The heating system is electrical-based by design. The home utilizes
propane to run the power plant, aujmented by solar water heater. Propane has challenges in
the rate of consumption and ability to refill during mud season and winter. Our goal is to'shift to
solar energy generatiort and electrical energy storage systems.
The spa has been designed to be heated by two 5.5kw heating units. One is included in the
controller unit, with a second standalone unit. Additional capacity is included within the design in
the event adequate heating is not achievable with these two heating units.
Heat Pumps for pools are possible, hor#ever the technology for higher altitude/colder
environmental systems are just coming to market. Larger footprint inline heaters are also
possible, such as the EcoSmart 27kw water heating system. With the insulation systems
applied, and the two 5.5kw heaters, research says we should be able to maintain temperatures
up to 104 degrees in the coldest of temperatures for periods of time-
Safety covers
The Spa system has cover tie downs incorporated into the deck. A thick, rigid cover system is to
be used *itn tfr" abilily for heavierweights to be supported. While the walls provide a banier to
entry it is possible for wildlife to access the area. The cover will provide adequate protection
from entry into the spa when in place.
Pool barrier or fence
The back desk off of lhe house currently has a 4-foot culture stone wall on the West side. The
North+ide wifl have a 4-foot tall rock wallwith a cascading water feature, which ties into the
West wall and the new wall along the East side of the spa. This is a 3-foot culture stone wall,
matching the West wall design. The South side is the Jrouse, with a door into living quarters, and
a porch walkway that travels around the side of the house, starting 40-feet from the spa.
The proper{y tapers off down a steep hill. The property line is 180'down the hill, Cattle Creek is
230 ' down the hill. There,are no trails of access from the area"adjacent to the spa or anywhere
else on the 4.5 acre lot. The only access is from the house. The home sits at the end of a long,
difficult dirt road, with the nearest house approximately l4 mile away.
Equipment room- new structure design or existing area
The Equipment Room (aka mechanical aka "bunker") is new construction, integrated into the
spa pad. Pumps work efficiently when below the water line, equipment is on the pad of the spa
The Equipment Room is 8'wide x 4' deep x 4'tall. The service breaker panel is located inside
the bunker, with a disconnect pan6l located at the front of the spa on the wall of the house.
JeUAir, filter, lights, and controller circuits travel through the bunker walls, along the vessel
exterior, traveling through the insulation layer. The design allows for replacement pulls to occur
through the conduit installed.
Ceiling lights will be installed to provide illumination in the room. The need to access the
Equipment Room is minimized by the equipmept configuration, with all equipment controlled
from a panel at the front of the spa. Cleaning of the basket isttreprimary reason to access the
bunker.
General mechanical equipment description including suction trap
avoidance
The Electrical, and Source and Cost sections of this document have charts with specific
equipment identified. The [Mechanical Room Design] section of this document describes the
equipment in detail.
The PVC Pipe System covers the VBG-compliant high-flow suction covers, with example image
included. Specific 10" VBG-compliant high-flow suction covers are also listed in the Source and
Cost tables.
General frost protection
The b Tz" concrete pad has R12 (?r'insulation) installed undemeath , al4' below grade' The
vesselwalls have $6" closed cellfoam insulation, injected between the vesselwall, and a 4'
thick exterior wall. This provides in excess of R30 insulation'
The pool cover is still in design, This is the most significant point of heat loss. The covei design
includes tie downs around the deck of the spa, with a rigid cover approximately 3" thick,
covered. We have been researching advanced technology, incorporating heaters or solar
systems into the cover. Solar will be inefiicient, in that the time when solar is most needed, in
winter, the sun is blocked by the house. ln the months of April - Septembel when the sun is
available, the spa is designed to run cooler.
The Equipment room is insulated as well, and has two lights to provide some heat. An induction
heating panel may be utilized during winter months.'We have been using 2' square panels,
which provide great heat for a low cost to - 100sqft. The bunker is 128cuft, so the panel is more
than adequate. These panels are WiFi controlled.
Decks and coping
The spa is an in-ground vessel. The area from the vessel to the exterior wall is approximately 6'
with 3l utilized by a water,drainage channelto capture overflow, and the remaining 3" sealed
and str.ucturally supported, covered with pavers. The spa itself'has.a capstone that has the
minor overhang of f in the design. This allows for a seamless transition from the sunounding
deck into the spa.
The entrance to the spa has stairs transitioning into the vessel, with spa control at the entrance
to the stairs. There is a handrail alongside the stairs, for transition from ground to spa floor.
Public or private
The Hankinson Residential Spa is for Private Use Only. The tenain provides a natural banier. lt
is planned to install a WiFi camera with motion de{ector and alarm for monitoring. As a
work-from-home resident, and,a dog present, it is extrernely difficult to approach the home
without notice, day or night. The motion detection system will provide an additional layer of
security for when we are traveling or otherwise not at home.
Electrical Service Permit
An Electrieal Service Permitwill be applied for once the Building Permit process begins. We witl
file for a Homeowners Permit.
New Electrical Permit
;, Irrd'cafes Required Field
Job Site |nformation
Preperty Tlpe: Pdvate
, Property Owner Hame:
, Jcb Site Address:
r Jab Site Contact Phone;
i City:
, Slcte: CO
, County:
* Power Company;
, Type of work:
, Detailed Deserl$icu $i hat type sf ws*,
ftoor level. room #. gate codes, etc. ,
{limit - f5CS characters}
ED1j'IARO HANKINSOI'I
Cqrbondsle
Garfipld
,/,
.0rirrinq DireclEons:
To contlnue, you: must attest to the follawing:
El I oqln this propsrty/unit and live (or plan to live) there- A "Unit" is a
single residence in a muhlplex (duplex, triplex, etc.i.
EI t witt personally be performing the work.
ElThe above property is NOT:
. fcr sale or resa.tei
. rsfilal property tvhich i$ occqpled or is to be occupied by lenanis fot lodgiog.
erther transient or pennsnenl:
. generally ogen lo he puDlic {include3 any localion r'lhers geople come by tc
drop otf or Sck up pers0ns ot Froperty or conduet busifless;
L
Orlve Rd
e
Contlns€Cancel
Project Timeline and Budget
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Conclusion
Scott Hankinson,homeowne6 has extensive skills in the design development and
implementation of systems. Digging and site preparation experience comes first from
the U.S. Marine Corps, and then various home construction projects over S0 years.
r pustomBuiltSpas.com is my primary resourcg with over 20 years experience, they havej Feen instrumehtal in checking design, providing knowledge and insight, and will also be
, the source for all mechanical systems.:i,i
; flt a software engineet, I design, develop and implement complex systems for Fortune
I ,500 and start-ups. I am hands on, with extensive experience in wood, mechanical metal,
i Frc.ii
! have dug and prepared many different types of sites, generally dig by hand with
. f upport of power tools, have masonry experiencg opting to mix my own cement from
; premix using a mixe[ and am fully tooled for the project at hand.
il
I I am open to adjusting the extensive plans developed for this project, to accommodate
; bode or improve upon where needed.
Appendixes
Appendix A
American GeoSciences of Glenwood Springs - Soil Report dated February
14,2024